QCPItemText *addText =new QCPItemText (textParent);//textParent为QCustomPlot对象 addText->position->setCoords(pole.dist, updateRangY(textParent,pole.type)); addText->setFont(QFont(font().family(), 10)); addText->setText(QTextCodec::codecForName("gbk")->toUnicode(pole.pole.toLatin1().data())); addText->setColor(txtColor); textParent->replot();
for(int i=0;i<poleCurves.count();i++)
{
qDebug()<<"find del pole"<<i<<pole.dist<<poleCurves.at(i).first.dist<<pole.pole<<poleCurves.at(i).first.pole
<<(abs(pole.dist-poleCurves.at(i).first.dist)<0.01)
<<(pole.pole==poleCurves.at(i).first.pole);
if((abs(pole.dist-poleCurves.at(i).first.dist)<0.01)&&poleCurves.at(i).first.pole.contains(pole.pole))
{
QPair<PoleInfo,QPair<curveInfo,curveInfo> > tmp=poleCurves.at(i);
tmp.first.widthText->setText("");
tmp.first.widthText->position->setCoords(0,0);
tmp.first.heightText->setText("");
tmp.first.heightText->position->setCoords(0,0);
poleCurves.replace(i,tmp);
pole=poleCurves.at(i).first;
m_drawWireWidth->graph(poleCurves.at(i).second.first.curveIndex)->setVisible(false);
m_drawWireHeight->graph(poleCurves.at(i).second.second.curveIndex)->setVisible(false);
poleCurves.remove(i);
qDebug()<<"del pole"<<i;
delFlag=true;
break;
}
}
graph(0)->data().data()->clear();
graph(0)->data().data()->clear()
原文：https://www.cnblogs.com/gethope5/p/14956955.html